It's hard to get past the fact he's 24 and these days that's old for a player to come to Europe. Then there's the fact that (as far I can see) he's really only had one season in the top division in Brazil. Nor is he a full international, though I know for Brazilian players that aspect of the work permit rule often gets waived.
I know some players are late developers but there's usually reason for it - missed the youth scouting boat, physical development, injury, personal problems - but he was with Corinthians and a U20 international. So what happened? Does anybody watch enough Brazilian football to know how/why he was off the radar for a couple of years and then came back to become a star?
Now let's add the phrase attacking midfielder/goalscoring midfielder. Where does he play and where might he play for us?